Strainer



May 2 1927' N. A. McMAHON STRAINER Filed April 26,1926

2 Sheets-Sheet 1 WITNESS:

1,630,198 May 24 1927 N, A, McMAHON STRAINER Filed April 26. 1926 2 Sheets-Sheet 2 Patented May 24, 1927.

NATHAN ARTHUR MQMAHON, or DURAND, WISCONSIN.

STRAINER.

Application filed April 26, 1926. Serial 1%. 104,815.

This invention relates to a strainer for use on milk separators, the general object of the invention being to provide means for straining the milk a number of tunes as it is being poured into the tank of the separator so that the in'ipurities will be re moved from the milk before it passes through the separator.

Anotherobject of the invention is to so arrange the screens that they are readily accessible so that they can be easily cleaned.

This invention also consists in certain otherteatures of construction and in the Figure 3 is aside View of the device 7 itself.

Figure 4 is asection 011 line 4 4 of Fig ure 1.

In these views, 1 indicates the receptacle of the device which is of slightly tapering formation so that it may be seated in the mouth of the supply tank A ota separator, as shown in Figure 2. 'One portion of the receptacle is provided with an extension 1 at. its bottom so that this part of the re 'ceptacle is of greater depth than the other part and this other part has a sloping bot tom 2 which causes the milk to dram into the extension 1. A partition 3 is arranged in the receptacle and divides the part of less depth from that with the greater depth.

An opening 4 is made in the bottom of the partition which is covered by a strip 5 of screening material. Openings 6 are termed in the bottom of the extension and these openings are each covered by a strip 7 or screening material. These screens may be soldered in place softhey can be easily renewed when worn and theyv can beeasily cleaned owing to their arrangement and the large size of the compartments in which they are placed.

Sprin'garms 8 arefastened to the sides of the device and are arranged over a flat upper part3 ot' the partition 3 and are designed to removably hold a sheet 9 of filtering material over the small chamber, a spring 10 or other flexible member holding another portion oi the sheet over the head of the receptacle, this spring having its ends held by hooks 11 on the receptacle so that the sheet can be easily removed from over the small chamber whenever desired.

From the foregoing, it will be seen that the milk to be separated is poured into the small chamber through the filtering sheet 13 and the milk entering the chamber will run down the sloping bottom of the same through the screen 5 into the large chamber and it will pass from said large chamber through the screens 7 into the tank A of the separator. Thus the milk is strained three times before passing into the tank of the separator.

By making the receptacle tapering, the device will lit in different sizes of separator tanks and the receptacle may be provided 'witha bail so that it can be easily handled.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall Within the scope of the appended claims.

hat I claim is 1. A strainer 01 the class described com-, prising a receptacle having one part of dividing the two parts and having an open ing at its bottom for permitting liquid to pass from the part of less depth to the other part, a screen covering the said opening and the bottom oi'the deep part having an opening and a screen coveringthe same.

a 2. Astrainer of the class described comprising a receptacle having one part of greater depth than the other, a partition dividing the two parts and having an opening greater depth than the other, a partition.

at its bottom for permitting liquidto pass 3 from" the part of less depth to the other part, a screen covering the said opening, the bottom of the deep part having an op en ing, a screen covering the same, a sheet of straining material arranged over the shel low part, spring members 'for holding a portion of the said sheet on the, partition and a spring member extending partly screen covering said opening, the extension to having an opening therein, a removable screen carrying frame in :51lltl opening, untl means tor detach-ably holding a sheet; of straining material over the top ol the small chamber.

.111 testimony whereof I aliix my signature.

NAJ.HA N A... MCMA HUN. 

